package edu.zuoyelianxi;

public class jisuan {
    public static void main(String[] args) {
        int a=1,b=1,c=2,t;
        for (int i = 1; i <=9 ; i++) {
            c=a+b;
            a=b;
            b=c;
        }
        System.out.println(c);
    }
}
